Add better logs on error

Author: AliSoftware

lib/fastlane/plugin/wpmreleasetoolkit/models/app_size_metrics_payload.rb

@@ -71,7 +71,15 @@ def send_metrics(base_url:, api_token:, use_gzip: true)
           http.request(request)
         end
 
-        UI.message("Metrics sent. (Received: #{response.code} #{response.message})")
+        if response.is_a?(Net::HTTPSuccess)
+          UI.message("Metrics sent. (#{response.code} #{response.message})")
+        else
+          UI.error("Metrics failed to send. Received: #{response.code} #{response.message}")
+          UI.message("Request was #{request.method} to #{request.uri}")
+          UI.message("Request headers were: #{headers}")
+          UI.message("Request body was #{request.body.length} bytes")
+          UI.message("Response was #{response.body}")
+        end
         response.code.to_i
       end
     end